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001			65507
003			MX-TxCIM
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022			_a1093-4715
022			_a2768-6698 (Online)
024	8		_ahttps://doi.org/10.31083/j.fbl2707200
040			_aMX-TxCIM
041			_aeng
100	1		_aHailu, K. _920298
245	1	0	_aSelenium concentration in cattle serum and fodder from two areas in Ethiopia with contrasting human selenium concentration
260			_bFrontiers in Bioscience, _c2022. _aUSA :
500			_aPeer review
500			_aOpen Access
520			_aINTRODUCTION: Selenium (Se) is an essential mineral for livestock health and productivity. In cattle, Se deficiency is associated with delayed conception, growth retardation, and increased morbidity and mortality. METHODS: We conducted a survey of cattle serum (n = 224) and feed (n = 81) samples from two areas with contrasting human and cereal grain Se concentration in Ethiopia. The fodder samples include stover, straw, hay and pasture grass. Se concentration of the samples were measured using inductively coupled plasma-mass spectrometry. RESULTS: Serum Se concentration ranged from 14.9 to 167.8 μg L-1 (median, 41.4 μg L-1). Cattle from East Amhara had significantly greater serum Se concentration compared to cattle from West Amhara (median: 68.4 μg L-1 vs 25.7 μg L-1; p < 0.001). Overall, 79.8% of cattle had Se deficiency (<81 μg L-1). All of the cattle from West Amhara were Se deficient compared with 62.5% of those from East Amhara. State of lactation of cows or age of cattle was not associated with serum Se concentration. The Se concentrations of feed samples ranged from 0.05 to 269.3 μg kg-1. Feed samples from East Amhara had greater Se concentration than samples from West Amhara. Cow serum and cattle feed Se concentrations showed strong spatially correlated variation, with a strong trend from East to West Amhara. CONCLUSIONS: This study shows that cattle Se deficiency is likely to be highly prevalent in Ethiopia, which will negatively affect the health and productivity of livestock. The deficiency appears to be geographical dependent. More extensive surveys to map Se concentration in soil-feed-livestock-human cycle are required in Ethiopia and elsewhere.
546			_aText in English
650		7	_aLivestock _2AGROVOC _91171
650		7	_aCattle feeding _2AGROVOC _928413
650		7	_aSelenium _2AGROVOC _910359
651		7	_2AGROVOC _92025 _aEthiopia
700	1		_aGashu, D. _913486
700	1		_aJoy, E.J.M. _94706
700	1		_aAlonso, S. _928414
700	1		_aGizaw, S. _928415
700	1		_8I1707217 _aGameda, S. _gSustainable Intensification Program _gSustainable Agrifood Systems _913493
700	1		_aAnder, E.L. _913497
700	1		_aBailey, E.H. _913490
700			_aWilson, L. _910154
700	1		_aLark, R.M. _913487
700	1		_aKumssa, D.B. _913494
700			_aBroadley, M.R. _910166
773	0		_tFrontiers in bioscience (Landmark edition) _gv. 27, no. 7, p. 200 _dUSA : Frontiers in Bioscience, 2022 _x1093-4715
856			_yOpen Access through DSpace _uhttps://hdl.handle.net/10883/22145
942			_cJA _n0 _2ddc
999			_c65507 _d65499